Nonasymptotic critical behavior from field theory

TL;DR

This paper discusses how to derive nonasymptotic critical behavior near phase transition points using field theory up to five or six loop orders, providing insights into critical phenomena.

Contribution

It introduces a method to compute nonasymptotic critical behavior from field theory at high loop orders, extending previous asymptotic analyses.

Findings

Derived nonasymptotic critical behavior up to six loops

Applicable above and below critical temperature Tc

Enhanced understanding of critical phenomena

Abstract

The obtention (up to five or six loop orders) of nonasymptotic critical behavior, above and below Tc, from the field theoretical framework is presented and discussed.